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| author | Kevin Hao <haokexin@gmail.com> | 2013-12-24 07:12:10 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-01-09 23:52:17 (GMT) |
| commit | 7d2471f9fa85089beb1cb9436ffc28f9e11e518d (patch) | |
| tree | 1d3c786feb97e2ef82a417a9a95dcecf82bcd5da /virt | |
| parent | 813125d83372e19edecaba811d4d0dc115d36819 (diff) | |
| download | linux-7d2471f9fa85089beb1cb9436ffc28f9e11e518d.tar.xz | |
powerpc/fsl_booke: make sure PAGE_OFFSET map to memstart_addr for relocatable kernel
This is always true for a non-relocatable kernel. Otherwise the kernel
would get stuck. But for a relocatable kernel, it seems a little
complicated. When booting a relocatable kernel, we just align the
kernel start addr to 64M and map the PAGE_OFFSET from there. The
relocation will base on this virtual address. But if this address
is not the same as the memstart_addr, we will have to change the
map of PAGE_OFFSET to the real memstart_addr and do another relocation
again.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
[scottwood@freescale.com: make offset long and non-negative in simple case]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions